hw/cirrus_vga_rop.h

   1 /*
   2  * QEMU Cirrus CLGD 54xx VGA Emulator.
   3  *
   4  * Copyright (c) 2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 static void
  26 glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s,
  27                              uint8_t *dst,const uint8_t *src,
  28                              int dstpitch,int srcpitch,
  29                              int bltwidth,int bltheight)
  30 {
  31     int x,y;
  32     dstpitch -= bltwidth;
  33     srcpitch -= bltwidth;
  34     for (y = 0; y < bltheight; y++) {
  35         for (x = 0; x < bltwidth; x++) {
  36             ROP_OP(*dst, *src);
  37             dst++;
  38             src++;
  39         }
  40         dst += dstpitch;
  41         src += srcpitch;
  42     }
  43 }
  44
  45 static void
  46 glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
  47                                         uint8_t *dst,const uint8_t *src,
  48                                         int dstpitch,int srcpitch,
  49                                         int bltwidth,int bltheight)
  50 {
  51     int x,y;
  52     dstpitch += bltwidth;
  53     srcpitch += bltwidth;
  54     for (y = 0; y < bltheight; y++) {
  55         for (x = 0; x < bltwidth; x++) {
  56             ROP_OP(*dst, *src);
  57             dst--;
  58             src--;
  59         }
  60         dst += dstpitch;
  61         src += srcpitch;
  62     }
  63 }
  64
  65 static void
  66 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
  67                                                        uint8_t *dst,const uint8_t *src,
  68                                                        int dstpitch,int srcpitch,
  69                                                        int bltwidth,int bltheight)
  70 {
  71     int x,y;
  72     uint8_t p;
  73     dstpitch -= bltwidth;
  74     srcpitch -= bltwidth;
  75     for (y = 0; y < bltheight; y++) {
  76         for (x = 0; x < bltwidth; x++) {
  77             p = *dst;
  78             ROP_OP(p, *src);
  79             if (p != s->gr[0x34]) *dst = p;
  80             dst++;
  81             src++;
  82         }
  83         dst += dstpitch;
  84         src += srcpitch;
  85     }
  86 }
  87
  88 static void
  89 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
  90                                                         uint8_t *dst,const uint8_t *src,
  91                                                         int dstpitch,int srcpitch,
  92                                                         int bltwidth,int bltheight)
  93 {
  94     int x,y;
  95     uint8_t p;
  96     dstpitch += bltwidth;
  97     srcpitch += bltwidth;
  98     for (y = 0; y < bltheight; y++) {
  99         for (x = 0; x < bltwidth; x++) {
 100             p = *dst;
 101             ROP_OP(p, *src);
 102             if (p != s->gr[0x34]) *dst = p;
 103             dst--;
 104             src--;
 105         }
 106         dst += dstpitch;
 107         src += srcpitch;
 108     }
 109 }
 110
 111 static void
 112 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
 113                                                         uint8_t *dst,const uint8_t *src,
 114                                                         int dstpitch,int srcpitch,
 115                                                         int bltwidth,int bltheight)
 116 {
 117     int x,y;
 118     uint8_t p1, p2;
 119     dstpitch -= bltwidth;
 120     srcpitch -= bltwidth;
 121     for (y = 0; y < bltheight; y++) {
 122         for (x = 0; x < bltwidth; x+=2) {
 123             p1 = *dst;
 124             p2 = *(dst+1);
 125             ROP_OP(p1, *src);
 126             ROP_OP(p2, *(src+1));
 127             if ((p1 != s->gr[0x34]) || (p2 != s->gr[0x35])) {
 128                 *dst = p1;
 129                 *(dst+1) = p2;
 130             }
 131             dst+=2;
 132             src+=2;
 133         }
 134         dst += dstpitch;
 135         src += srcpitch;
 136     }
 137 }
 138
 139 static void
 140 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
 141                                                          uint8_t *dst,const uint8_t *src,
 142                                                          int dstpitch,int srcpitch,
 143                                                          int bltwidth,int bltheight)
 144 {
 145     int x,y;
 146     uint8_t p1, p2;
 147     dstpitch += bltwidth;
 148     srcpitch += bltwidth;
 149     for (y = 0; y < bltheight; y++) {
 150         for (x = 0; x < bltwidth; x+=2) {
 151             p1 = *(dst-1);
 152             p2 = *dst;
 153             ROP_OP(p1, *(src-1));
 154             ROP_OP(p2, *src);
 155             if ((p1 != s->gr[0x34]) || (p2 != s->gr[0x35])) {
 156                 *(dst-1) = p1;
 157                 *dst = p2;
 158             }
 159             dst-=2;
 160             src-=2;
 161         }
 162         dst += dstpitch;
 163         src += srcpitch;
 164     }
 165 }
 166
 167 #define DEPTH 8
 168 #include "cirrus_vga_rop2.h"
 169
 170 #define DEPTH 16
 171 #include "cirrus_vga_rop2.h"
 172
 173 #define DEPTH 24
 174 #include "cirrus_vga_rop2.h"
 175
 176 #define DEPTH 32
 177 #include "cirrus_vga_rop2.h"
 178
 179 #undef ROP_NAME
 180 #undef ROP_OP